11281152 has 72 divisors (see below), whose sum is σ = 30913456. Its totient is φ = 3649536.

The previous prime is 11281147. The next prime is 11281159. The reversal of 11281152 is 25118211.

It is not an unprimeable number, because it can be changed into a prime (11281159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28218 + ... + 28614.

Almost surely, 2^11281152 is an apocalyptic number.

11281152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11281152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15456728).

11281152 is an abundant number, since it is smaller than the sum of its proper divisors (19632304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11281152 is an equidigital number, since it uses as much as digits as its factorization.

11281152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 439 counting only the distinct ones).

The product of its digits is 160, while the sum is 21.

The square root of 11281152 is about 3358.7426218750. The cubic root of 11281152 is about 224.2768685283.

Adding to 11281152 its reverse (25118211), we get a palindrome (36399363).

The spelling of 11281152 in words is "eleven million, two hundred eighty-one thousand, one hundred fifty-two".